Sash-lock.



ivo. 737351.

UNITEDY l STATESV PATENT Omron..

atented August 25,:190.

JoHN H. 4crnMENrs, onooieiiahs oovn'rnXAs. f

speci-'Freemen forming part of Letters :Patent N. 737,351, dated Auges#2 5, iefoe.

' Aplicaion mea February 6,1993. serai 110.142.197. N0 maar To a/ZZ Whomit may concern: i Beit known that I, JOHN HENRY CLEMENTS; of CoperasCove, in the county of Ooryell and State of Texas, have invented a newand useful Improvement in Sash-Locks, of which the following is aspecification.

My invention relates to an improvement in devices designed for locking awindow-sash at any desired position ,its object being to provide asash-lock that is simple, cheap, and

effective in operation.

A further object isto provide a device which may be 'applied to awindow-frame to lock the sash without defacing the frame or sash and onewhich may be applied to windows already in use,

A further object is to do away 'with the 'use of weights to hold thesash at any elevation and provide in their place a device which will beequally as effective..

My'in'vention consists in certain novel features of construction and theparticular com:- bination and arrangement of parts, as willbehereinafter fully described, and-pointed out in the claim. f

In the drawings, vFigure lis a perspective View showing my improvementin use. Fig.

2 is a vertical longitudinal viewof the same.

Fig. 3 is a detached perspective view of the guide-rod. Fig. iis aninverted perspective View of the apertured plate. Fig. 5 is a detacheddetail perspective view of the clutchloop. Fig. 6 is a perspective viewof a slightlydierent form of guide-rod. f

A represents a window-frame of the usual construction, but withoutweightboxes and pulleys, as they are rendered unnecessary by the use ofmy device. The usual guide-beads are used,between which the sashes areadaptedtallyithe'pivots or trunnions ctc', is passed through the openingin the plate B from the rear, the pivots ttinginf the sockets b bthereof. The opening through the yoke or clutchtothe window-casing, asshown, the cross-section of said rod being also oblong. Said rod isperfectly straight throughout nearly its entire length, but near eachend it is, provided with bends e e, one of whichlmay be angular, but

the other one must be curved to permit the ,passing of the clutch-loopover it onto the main portion of the rod. If desired, both ends 4in aperfectly horizontal position it will slide freely'up-and down on saidrod.

The various parts of the d evice having been `properly assembled, tooperate'the sash it is simply necessary to grasp the knob 'or handlehsecured to the center of thelower rail of the lowerv sash with one handand the clutchloop C with the other, holding the said loop horizontal,and raise bothztogether, whereupon the clutch-loop will slide freelyupon the rod E until vlthe ,sash has been raised to its desired height,when 'the .hold on the knob 4h and clutch-lock C is released.The-weightl of the sash will then be thrown on the clutchloop audit willrock on its pivots c c by reason of lthe opening through the plate beinglarger than the height of the loop C, throwing it out of itshorizontal'position and cause two ofthe inner walls ofthe openingthrough the clutch-loop to bind against the rod AE on opposite sides,the rear wall-.of `the opening binding at its lower edge and the fr'n'twall binding against the rod at its upper edge, and thus securely clampor lock the sash against downward movement. When it is desired to lowerthe sash again, the clutch-loop is brought to its horizontal positionagain by one hand and the sash lowered by the other handV pressingdownwardly on knob or handle h.

Sloop C is oblong and fits onthe rod E, secured` IOO The various partsmay be made of cast steel, iron, or other suitable metal and ornainentedas desired.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination with a Window frame and sash, of a rectangular rodsecured to the frame by curved bends at the ends, arectangularlyapertured plate secured to the sash having curved socketsin its rear face, horizontal and Vertical ilanges surrounding theaperture on the outer face of the plate, the inner Walls of thehorizontal flanges being beveled, a clutohloop of less area than theaperture in the plate having a rectangular central aperture,

said clutch-loop passed through the apertured plate from the rear, andcircular pivots or trunnions projecting horizontally from each side ofthe loop at its rear end and adapted to iit and rock in the sockets inthe rear face of the apertured plate, whereby said clutch-loop Will beadapted to slide on the rectangular rod, When held in a horizontalposition and to rook on its pivots and bind on opposite faces of the rodby downward pressure of the sash to lock said sash at any desiredheight.

JOI-IN Il. (ELEMENTS.

Witnesses GEO. LAYNE, C. W. ADAIR.

